TY - NEWS
TI - Mechanical and tribological behavior of red clay ceramic tiles coated with fly ash powders by thermal sparying technique
AU - Peña Rodriguez, Gabriel
AU - Dulce Moreno, Hector Jaime
AU - Daza Ramirez, Jessica Maria
AU - Orozco Hernandez, Silvia Juliana
AU - Vargas Galvis, Fabio
AB - The mechanical and tribological performance of red clay ceramic tiles uncoated and
coated by oxy-fuel thermal spraying process from fly ash powders was evaluated. The ceramic
tile substrates were manufactured by uniaxial pressing at 26.17 bar pressure, and sintered at
1100 °C. The coating thickness was determined based on the number of projection-cycles
oxyacetylene flame over substrate. Coal fly ash coatings were deposited, with average
thickness of 56.18±12.18 µm, 180.42±20.32 µm, and 258.26±25.88µm. The mechanical
resistance to bending and wear by abrasion deep, were studied using ISO 10545-4 standards
and ISO 10545-6 respectively; adhesion was measured using Elcometer equipment Type III
according to ASTM D-4541-02 and the average roughness (Ra) was found according to ASTM
standard D7127-13, using the profilometer Mitutoyo SJ 201. The surface morphology
presented the heterogeneous molten or semi molten splats with average size of 35.262±3.48
micrometers with good adhesion, justifying increased mechanical resistance to bending by 5%,
as well as wear by abrasion deep. These results contribute to the development of ceramic
products with added value, to be used in various technological applications.
DA - 2017
KW - Ceramic tiles
KW - fly ash coatings
KW - thermal spray
KW - Mechanical resistance to flexion
KW - deep abrasion wear
KW - adherence
KW - rugosity
PB - Journal of Physics: Conference Series
UR - https://repositorio.ufps.edu.co/handle/ufps/684
ER -